Trade & Scheme
Trade – Electrician
- 2 Year
Trade Name – Electrician
Duration – 2 Years
Eligibility – Secondary Pass in 10+2 System with Science and Mathematics
Electrician trade under CTS is one of the most popular courses delivered nationwide through network of ITIs. The course is of two years duration. It mainly consists of Domain area and Core area. The Domain area (Trade Theory & Practical) impart professional skills and knowledge, while Core area(Workshop Calculation and science, Engineering Drawing and Employability Skills) impart requisite core skill, knowledge and life skills. After passing out of the training programme, the trainee is awarded National Trade Certificate (NTC) by DGT which is recognized worldwide.
During the two years duration of Electrician trade a candidate is trained on professional skills& knowledge, Engineering Drawing, Workshop Calculation & Science and Employability skill related to job role. In addition to this a candidate is entrusted to undertake project work and extracurricular activities to build up confidence.
1.1 Job Role
Installs, maintains and repairs electrical machinery equipment and fittings in factories, workshops powerhouse, business and residential premises etc. Studies drawings and other specifications to determine electrical circuit, installation details etc. Positions and installs electrical motors, transformers, switchgears. Switch boards and other electrical equipment, fittings and lighting fixtures. Makes connections and solders terminals. Tests electrical installations and equipment and locates faults using megger, test lamps etc. Repairs or replaces defective wiring, burnt out fuses and defective parts and keeps fittings and fixtures in working order. May do armature winding, draw wires and cables and do simple cable jointing. May operate, attend and maintain electrical motors, pumps etc.
Fits and assembles electrical machinery and equipment such as motors, transformers, generators, switchgears, fans etc., Studies drawings and wiring diagrams of fittings, wiring and assemblies to be made. Collects prefabricated electrical and mechanical components according to drawing and wiring diagrams and checks them with gauges, megger etc. to ensure proper function and accuracy. Fits mechanical components, resistance, insulators, etc., as per specifications, doing supplementary tooling where necessary. Follows wiring diagrams, makes electrical connections and solders points as specified. Checks for continuity, resistance, circuit shorting, leakage, earthing, etc. at each stage of assembly using megger, ammeter, voltmeter and other appliances and ensures stipulated performance of both mechanical and electrical components filled in assembly. Erects various equipment such as bus bars, panel boards, electrical posts, fuse boxes switch gears, meters, relays etc. using non-conductors, insulation hoisting equipment as necessary for receipt and distribution of electrical current to feeder lines. Installs motors, generators, transformer etc. as per drawings using lifting and hoisting equipment as necessary, does prescribed electrical wiring, and connects to supply line. Locates faults in case of breakdown and replaces blown out fuse, burnt coils, switches, conductors etc. as required. Checks, dismantles, repairs and overhauls electrical units periodically or as required according to scheduled procedure. May test coils. May specialize in repairs of particular equipment manufacturing, installation or powerhouse work and be designated accordingly.
1.2 The Broad components covered during the course are given below:
In this year the trainee learns about safety and environment, use of fire extinguishers, artificial respiratory resuscitation to begin with. He gets the idea of trade tools & its standardization, identifies different types of conductors, cables & their skinning & joint making. Basic electrical laws like Kirchhoff’s law, ohm’s law, laws of resistances and their application in different combinations of electrical circuit are practiced along with laws of magnetism. The trainee practices on circuit for single phase and poly-phase circuits for 3 wire /4 wire balanced & unbalanced loads. Skilling practice on different types & combination of cells for operation and maintenance is being done. Wiring practice with installation of different accessories like ICDP switch, distribution fuse box and mounting energy meters are practiced as per IE rules for hostel/residential building, workshop and its fault detection are done by trainee. The trainee will practice for pipe & plate earthing. Different types of light fitting are to be done like HP/LP mercury vapour and sodium vapour are prominent. The trainee will practice on different types of measuring instruments like multimeter, wattmeter, energy meter, phase sequences meter, frequency meter, for measurement of electrical parameters in single & three phase circuits. He will gain skill on range extension, calibration and testing of meters. Practice for dismantling, assembling and testing of heating element equipment, induction heating equipment, grinding machines and washing machines will be done by trainee. Skill will be gained on transformer for operation, efficiency, series parallel operation, replacement of transformer oil and combination of single-phase transformers for 3 phase operation. The trainee will practice on winding of small transformer.
In this year the trainee will study the details of electrical rotating machines viz. DC machines, induction motors, alternators & MG sets and practice on them. The trainee will practice on determining characteristics, their performance analysis, starting, speed control and reversing direction of rotation of machines. He will practice on parallel operation & synchronization of alternators, winding practice and over hauling will be practiced for DC machine and induction motors. Practices on diodes for bridge rectifier, switching devices & amplifiers by electronic components, different wave shape generation and testing by CRO. Designing control cabinet, assembling control elements and their wiring are to be practiced. Speed control of AC/DC motors by electronic controller will be practiced. The trainee will practice on testing, analyzing and repairing of voltage stabilizer, emergency light, battery charger, UPS and inverter. He will gain knowledge of thermal, hydel, solar & wind energy systems. The trainee will practice on distribution system, domestic service line and accessories & their protection by practicing on relay and circuit breaker for operation and maintenance.
1.3 LEARNING OUTCOMES
Learning outcomes are a reflection of total competencies of a trainee and assessment will be carried out as per the assessment criteria.
LEARNING OUTCOMES (TRADE SPECIFIC)
- Prepare profile with an appropriate accuracy as per drawing following safety precautions.
- Prepare electrical wire joints; carry out soldering, crimping and measure insulation resistance of underground cable.
- Verify characteristics of electrical and magnetic circuits.
- Install, test and maintenance of batteries and solar cell.
- Estimate, Assemble, install and test wiring system.
- Plan and prepare Earthing installation.
- Plan and execute electrical illumination system and test.
- Select and perform measurements using analog / digital instruments.
- Perform testing, verify errors and calibrate instruments.
- Plan and carry out installation, fault detection and repairing of domestic appliances.
- Execute testing, evaluate performance and maintenance of transformer.
- Plan, execute commissioning and evaluate performance of DC machines.
- Execute testing, and maintenance of DC machines and motor starters.
- Plan execute commissioning and evaluate performance of AC motors.
- Execute testing, and maintenance of AC motors and starters.
- Plan, execute testing, evaluate performance and carry out maintenance of Alternator / MG set.
- Execute parallel operation of alternators.
- Distinguish, organize and perform motor winding.
- Assemble simple electronic circuits and test for functioning.
- Assemble accessories and carry out wiring of control cabinets and equipment.
- Perform speed control of AC and DC motors by using solid state devices.
- Detect the faults and troubleshoot inverter, stabilizer, battery charger, emergency light and UPS etc. 23. Plan, assemble and install solar panel.
- Erect overhead domestic service line and outline various power plant layouts.
- Examine the faults and carry out repairing of circuit breakers.
1.4 COURSE STRUCTURE
Table below depicts the distribution of training hours across various course elements during a period of two-years: –
Notional Training Hours
Professional Skill (Trade Practical)
Professional Knowledge(Trade Theory)
Workshop Calculation & Science
1.5 ASSESSMENT & CERTIFICATION
The trainee will be tested for his skill, knowledge and attitude during the period of course through formative assessment and at the end of the training programme through summative assessment as notified by the DGT from time to time. a) The Continuous Assessment (Internal) during the period of training will be done by Formative Assessment Method by testing for assessment criteria listed against learning outcomes. The training institute has to maintain individual trainee portfolio as detailed in assessment guideline. The marks of internal assessment will be as per the formative assessment template provided on www.bharatskills.gov.in. b) The final assessment will be in the form of summative assessment. The All India Trade Test for awarding NTC will be conducted by Controller of examinations, DGT as per the guidelines. The pattern and marking structure is being notified by DGT from time to time. The learning outcome and assessment criteria will be basis for setting question papers for final assessment. The examiner during final examination will also check individual trainee’s profile as detailed in assessment guideline before giving marks for practical examination.
1.6 PASS REGULATION
For the purposes of determining the overall result, 50% weightage is applied to each examination for two years courses. The minimum pass percent for Trade Practical and Formative assessment is 60% & for all other subjects is 33%. There will be no Grace marks.
1.7 PROGRESSION PATHWAYS
1 Can join industry as Technician and will progress further as Senior Technician, Supervisor
2 and can rise up to the level of Manager.
3 Can become Entrepreneur in the related field.
4 Can appear in 10+2 examination through National Institute of Open Schooling (NIOS) for
5 acquiring higher secondary certificate and can go further for General/ Technical education Can take admission in diploma course in notified branches of Engineering by lateral entry.